Open hearth valve



Feb. vl, 1938. 1 Q HUBBARD 2,106,913

OPEN HEARTH VALVE Filed March 9, 1957 i I Il; M? n i INVENTOR l Patented Feb. 1, 1938- UNITED STATES PATENT OFFICE oPEN HEARTH vALvEv Joseph Glen Hubbard, Youngstown, Ohio ApplicationMarch, 1937, Serial N0. 129,832

Z'Claims.

This invention relates to an open hearth fuel valve. A

The principal object of this invention is to provide a valve Iparticularly adapted to control the iiow of fuel to an open hearth furnace.'

A further object of this invention is to provide a valve so constructed that in full off position it will provide a positive leak proof closure.

A still further object of this invention is the provision of a valve adapted Vto control fuel for an open hearth furnace and to partially gasify the same through the introduction of steam into the said valve.

In supplying fuel to open hearth furnaces it l5 is highly desirable that an accurate means of control be provided, as well as one which is convenient to operate. At the present ltime the majority of the fuel control means on open hearth furnaces' 'comprise a series of ordinary Wheel 2 valvesV which must be individually set to supply vthe proper mixture of tar and oil and the various other substances used for fuel. Thus, at best, the fuel supply is chiefly a matter of guess work as there is no means provided for determining the correct amount or the quality of the fuel being supplied. In my invention I have provided a valve that, to a great degree, overcomes these obstacles in that it provides a single means of control, means for gasifying the fuel, and means for determining the most desirable quantity of fuel passed.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed,

o without departing from the spirit of the invention.

'Ihe invention is illustrated in the accompanying drawing, wherein:-

Figure 1 is a side elevation of the assembled valve with parts broken away and parts in cross section.

Figure 2 is an enlarged detail View of the interior portion of the valve shown in Figure l.

Figure 3 is a top plan view of the same interior portion of Figure l as shown in` Figure 2.

By referring to Figure 1 of the drawing it will be seen that the numeral I indicates a body portion of .the valve which has bolted thereto an upper body portion 2, an enlarged circular upper section 3 of which is adapted to be suitably REISSUED SEP 8 ma marked to show the various operating-positions of the valve. .A stem 4 is centrally .positioned within these body portions and has positioned around its upper section a suitable gland and adjustment nut 5. A handle 6 is held in place on 5 the upper end'of the stem 4 by means of anut 1. This handle 6 is provided with an indicator 8v and a friction catch 9. The lower end of the stem 4 extends within the interior of the body I and has positioned about it a bushing I0 and a l0 coil spring II. Directly under the lower end of the stem 4 there is positioned a rotatable semicam shaped disk I2, an upright stem portion I3 of which engages the lower end of the stem v4. This rotatable semi-cam shaped disk I2 is posil5 tioned directly over and rests upon a circular disk I4 which in turn rests upon portions of the body I. A suitable gasket I5 is provided at this point to insure a tight connection, and a pin I6 is positioned partly within the circular disk I4 and the body member I in order to prevent any rotation of the circular disk I4. A bell shaped baille I1 is formed on the lower side of this circular disk I4 and is adapted to equally distribute steam being injected through the threaded open- 25 ing I8 in the'body I.

The portion of this valve in which I am 'chiey concerned is the unique construction of the closure means provided in the rotatable-semi-cam shaped disk I2. By referring to Figure 2 of the 30 drawing it will be seen that the ldisk I2 has positioned upon it the stem portion I3 and an upright hollow cylindrical member I9 which in turn has positioned within it a plunger 20, a coil spring 2l, and a secondary plunger 22, the lower 35 end of which extends downwardly into the rotatable cam-shaped disk I2 and touches a circular button-like insert 23. The insert 23 has also positioned between it and theotatable semicam shaped disk I2 a secondary coil spring^24. 40 The plunger 20 has a small knob 25 formed on f its upper end after assembly, this knob 25 being adapted to contact a cam 26 (see Fig. '1) placed on the inside surface of the body member 2 at a position approximately over an opening 21 in the 45 v rt 23, 5o te t control.

By referring again` to Figure 1 it will be seen that the valve is designed to receive the i'uel at the right side and eject it from the left side. 'I'he opening i8 is provided to permit the insertion of steam at this point where it is suitably distributed and effectively mixed with the fuel by means of the baille I1, thus producing a highly desirable gasifying action.

It is obvious that this valve may be used in controlling the flow of material other than open hearth fuel as specied herein, as it is equally as ecient in controlling any other liquid.

1. In a valve comprising body members drilled and tapped to form a iiuid chamber therein, a circular disk within said chamber having an opening therein, a pin in said circular disk adapted to engage an opening in one of said body members, a rotatable cam shaped disk positioned upon the said circular disk, a stem formed on said rotatable cam shaped disk, an operating stem positioned in one of said body members and adapted to engage the stem formed on the rotatable cam shaped disk, a button-like insert positioned in said rotatable cam shaped disk and a coil spring also positioned in said rotatable cam shaped disk and adjacent to the said buttonlike insert, a secondary spring tension means positioned on the said cam shaped disk designed to apply extra tension to the said button-like insert, said secondary spring tension means comprising a cylindrical member positioned upon the said rotatable cam shaped disk, a pair of plungers and a coil spring positioned within said cylindrical member, one of said `plungers adapted to contact a cam formed on an inside surface of one of said body members, and the other one of said plungers bearing against the said buttonlike insert, substantially as described.

2. In a valve comprising body members drilled andy tapped to form a fluid chamber therein, a circular disk within said chamber having an opening therein, a pin in said circular disk adapted to engage an opening in one of said body members, a rotatable cam shaped disk positioned upon the said circular disk, a stem formed on said rotatable cam shaped disk, an operating stem positioned in one cf said body members and adapted to engage the stem formed on the rotatable cam shaped disk, Aa button-like insert positioned in said rotatable cam shaped disk and a coil spring also positioned in said rotatable cam shaped disk and adjacent to the said button-like insert, a secondary spring tension means positioned on the said cam shaped disk designed to apply extra tension to the said button-like insert, said secondary spring tension means; comprising a cylindrical member positioned upon the said rotatable cam shaped disk, a pair of plungers and a coil spring positioned within said cylindrical member, one of said plungers adapted to contact a cam formed on an inside surface of one of said body members, and the other one of said.A plungers bearing against the said button-like insert, means for gasifying the material being handled in the valve by mixing steam therewith, said means comprising an opening in one of said body members and a bell shaped baille formed on the bottom of said circular disk at a point directly over the said opening, substantially as described.

JOSEPH GLEN HUBBARD. 

